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Is Chrome Lighthouse Broken for Mobile Testing?


Here are Chrome Lighthouse scores for three top sites: Uber, AirBnB, and Pizza Hut. Testing is conducted with Mobile selected:

The scores don't seem to match up with the actual mobile page load speed - and seem impossibly low for top high-traffic sites like these.

UBER

AirBnB

PIZZA HUT

Is Chrome Lighthouse broken for mobile testing?


Solution

  • This is working as expected. Lighthouse, by default and with the settings you showed, throttles the network speed and CPU (simulated). See https://github.com/GoogleChrome/lighthouse/blob/master/docs/throttling.md